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[PATCH] kbuild, Kbuild.include: avoid using spaces in call arguments

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Do not use whitespace in arguments of functions in makefiles, as they
propagate further without notice.  Thus we get

  + echo ' y'

  instead of

  + echo y

Fix misleading comments.

Signed-off-by: Oleg Verych <olecom@flower.upol.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Verych 2007-02-07 23:04:35 +01:00 committed by Linus Torvalds
parent 5331be0905
commit bff288c19e
1 changed files with 20 additions and 20 deletions
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40
scripts/Kbuild.include
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@ -57,7 +57,7 @@ endef
# See documentation in Documentation/kbuild/makefiles.txt # See documentation in Documentation/kbuild/makefiles.txt
# checker-shell # checker-shell
# Usage: option = $(call checker-shell, $(CC)...-o $$OUT, option-ok, otherwise) # Usage: option = $(call checker-shell,$(CC)...-o $$OUT,option-ok,otherwise)
# Exit code chooses option. $$OUT is safe location for needless output. # Exit code chooses option. $$OUT is safe location for needless output.
define checker-shell define checker-shell
$(shell set -e; \ $(shell set -e; \
@ -74,23 +74,23 @@ define checker-shell
endef endef
# as-option # as-option
# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,) # Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
as-option = $(call checker-shell, \ as-option = $(call checker-shell,\
$(CC) $(CFLAGS) $(1) -c -xassembler /dev/null -o $$OUT, $(1), $(2)) $(CC) $(CFLAGS) $(1) -c -xassembler /dev/null -o $$OUT,$(1),$(2))
# as-instr # as-instr
# Usage: cflags-y += $(call as-instr, instr, option1, option2) # Usage: cflags-y += $(call as-instr,instr,option1,option2)
as-instr = $(call checker-shell, \ as-instr = $(call checker-shell,\
printf "$(1)" | $(CC) $(AFLAGS) -c -xassembler -o $$OUT -, $(2), $(3)) printf "$(1)" | $(CC) $(AFLAGS) -c -xassembler -o $$OUT -,$(2),$(3))
# cc-option # cc-option
# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586) # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
cc-option = $(call checker-shell, \ cc-option = $(call checker-shell,\
$(CC) $(CFLAGS) $(if $(3),$(3),$(1)) -S -xc /dev/null -o $$OUT, $(1), $(2)) $(CC) $(CFLAGS) $(if $(3),$(3),$(1)) -S -xc /dev/null -o $$OUT,$(1),$(2))
# cc-option-yn # cc-option-yn
# Usage: flag := $(call cc-option-yn, -march=winchip-c6) # Usage: flag := $(call cc-option-yn,-march=winchip-c6)
cc-option-yn = $(call cc-option, "y", "n", $(1)) cc-option-yn = $(call cc-option,"y","n",$(1))
# cc-option-align # cc-option-align
# Prefix align with either -falign or -malign # Prefix align with either -falign or -malign
@ -98,7 +98,7 @@ cc-option-align = $(subst -functions=0,,\
$(call cc-option,-falign-functions=0,-malign-functions=0)) $(call cc-option,-falign-functions=0,-malign-functions=0))
# cc-version # cc-version
# Usage gcc-ver := $(call cc-version, $(CC)) # Usage gcc-ver := $(call cc-version,$(CC))
cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC)) cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh $(CC))
# cc-ifversion # cc-ifversion
@ -107,8 +107,8 @@ cc-ifversion = $(shell [ $(call cc-version, $(CC)) $(1) $(2) ] && echo $(3))
# ld-option # ld-option
# Usage: ldflags += $(call ld-option, -Wl$(comma)--hash-style=both) # Usage: ldflags += $(call ld-option, -Wl$(comma)--hash-style=both)
ld-option = $(call checker-shell, \ ld-option = $(call checker-shell,\
$(CC) $(1) -nostdlib -xc /dev/null -o $$OUT, $(1), $(2)) $(CC) $(1) -nostdlib -xc /dev/null -o $$OUT,$(1),$(2))
###### ######
@ -120,22 +120,22 @@ build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
# Prefix -I with $(srctree) if it is not an absolute path, # Prefix -I with $(srctree) if it is not an absolute path,
# add original to the end # add original to the end
addtree = $(if \ addtree = $(if \
$(filter-out -I/%, $(1)), $(patsubst -I%,-I$(srctree)/%,$(1))) $(1) $(filter-out -I/%,$(1)),$(patsubst -I%,-I$(srctree)/%,$(1))) $(1)
# Find all -I options and call addtree # Find all -I options and call addtree
flags = $(foreach o,$($(1)), \ flags = $(foreach o,$($(1)),\
$(if $(filter -I%,$(o)), $(call addtree, $(o)), $(o))) $(if $(filter -I%,$(o)),$(call addtree,$(o)),$(o)))
# echo command. # echo command.
# Short version is used, if $(quiet) equals `quiet_', otherwise full one. # Short version is used, if $(quiet) equals `quiet_', otherwise full one.
echo-cmd = $(if $($(quiet)cmd_$(1)), \ echo-cmd = $(if $($(quiet)cmd_$(1)),\
echo ' $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';) echo ' $(call escsq,$($(quiet)cmd_$(1)))$(echo-why)';)
# printing commands # printing commands
cmd = @$(echo-cmd) $(cmd_$(1)) cmd = @$(echo-cmd) $(cmd_$(1))
# Add $(obj)/ for paths that are not absolute # Add $(obj)/ for paths that are not absolute
objectify = $(foreach o,$(1), $(if $(filter /%,$(o)), $(o), $(obj)/$(o))) objectify = $(foreach o,$(1),$(if $(filter /%,$(o)),$(o),$(obj)/$(o)))
### ###
# if_changed - execute command if any prerequisite is newer than # if_changed - execute command if any prerequisite is newer than